CTD-N Technical Manual
P/N 95F-6000-00 (February 2017)
page 25
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Interval Time:
The time in hours, minutes, and seconds between the start of
each Record Time.
Record Time:
The time in hours, minutes and seconds beginning at the start of
each Interval Time during which the instrument is on and col-
lecting data.
NOTE.
The Record Time must be less than the Interval Time.
The Start Date and Start Time are entered in the Running Mode area in the following scroll boxes:
Start Date:
The date as the month, day, and year on which the instrument
will turn on and begin collecting data at the Start Time.
Start Time:
The time in hours, minutes and seconds, and AM or PM, at
which the instrument will turn on and begin collecting data on
the Start Date.
Averaged Data
To save memory, data that are collected continuously or during the Record Time can be averaged
over a specified interval - the Average Time. The Average Time is entered in minutes, and seconds
in the Length scroll box, which is in the Average Time area of the CTD-N Configuration dialog box.
Average Times are shown in the run time diagram in Figure 14. The minimum Average Time is 5
seconds; the maximum, 59 minutes, 59 seconds. Enter 4 seconds or less for no averaging.
NOTE.
When running in Interval or Delayed Interval mode, the Average Time should be set
to an integer number that is evenly divisible into the Record Time. For example, if the
Record Time is 10 minutes, the Average Time should be set to 1, 2, 5, or 10 minutes.
Otherwise the last Average Time in each interval will be automatically shortened.
Sampling Rate
The CTD-N sampling rate is selected in the Sampling Rate area of the CTD-N Configuration dialog
box. The sampling rate determines the frequency at which the CTD-N measures and stores the data.
There are 15 sampling rates, 1 Hz through 15 Hz in 1-Hz increments.
NOTE.
The faster the sampling rate the faster the available memory will be filled.
